INVT GD20-0R4G-2-UL, Operation Manual

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Goodrive20-UL Series VFD Fault tracking
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1. Stop the VFD and disconnect it from the power line. Wait for at least the time designated on
the VFD.
2. Check the tightness of the power cable connections.
3. Restore power.
6.2 Fault handling

Only qualified electricians are allowed to maintain the VFD. Read the
safety instructions in Chapter 1 "Safety precautions" before working on the
VFD.
6.2.1 Indications of alarms and faults
Fault is indicated by LEDs. See Chapter 4 "Keypad operation". When TRIP light is on, an
alarm or fault message on the panel display indicates abnormal VFD state. Using the
information given in this chapter, most alarm and fault cause can be identified and corrected. If
not, contact with the INVT office.
6.2.2 Fault reset
The VFD can be reset by pressing the keypad key STOP/RST, through digital input, or by
switching the power light. When the fault has been removed, the motor can be restarted.
6.2.3 VFD faults and solutions
When a fault occurred, handle the fault as follows.
1. Check to ensure there is nothing wrong with the keypad. If not, please contact with the local
INVT office.
2. If there is nothing wrong, please check P07 and ensure the corresponding recorded fault
parameters to confirm the real state when the current fault occurs by all parameters.
3. See the following table for detailed solution and check the corresponding abnormal state.
4. Eliminate the fault and ask for relative help.
5. Check to eliminate the fault and carry out fault reset to run the VFD.
Note: The numbers enclosed in square brackets such as [1], [2] and [3] in the Fault type
column in the following table indicate the VFD fault type codes read through communication.
Fault
code
Fault type Possible cause Solutions
OUt1
[1] Inverter unit U
phase protection

The acceleration is
too fast;

IGBT module fault;

Misacts caused by

Increase ACC time;

Change the power
unit;

Check the driving
OUt2
[2] Inverter unit V
phase protection